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问题 单项选择题

脑性瘫痪是一种( )

A．非进行性中枢性运动障碍
B．非进行性外周性运动障碍
C．进行性中枢性运动障碍
D．进行性外周性运动障碍
E．缓慢进行性中枢性运动障碍

答案

参考答案：A

解析： 脑性瘫痪是一种多种原因引起的非进行性中枢性运动障碍和姿势异常。

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第二节: 语法填空

Vitamins are a group of substances（物质）found in food. The body needs them for life and health. So usually, many people care for the question: am I getting enough vitamins, and am I getting the right kind?

Even though very small amounts of each vitamin are enough for the needs of the body, the worry people have about vitamins has some reasons. And this has to do with their ___11_      --- the food they take in. A person eating a good variety of food get all the vitamins now ___12   ___ (know) to be needed.

The problem is that there are many people who don’t ___13_   __ foods wisely. So the answer ___14   ___ this question is: No extra ___15_  __ are needed, ___16    __ you eat proper foods. In fact, many of the vitamins cannot be ___17_  __（store） in the body, so when extra vitamins are taken in, the body simply gets rid of them. It is even ___18   ___ (harm) to put too much of certain vitamins into the body. This has been found to be ___19        (truth) of vitamin A and D, when ___20    ___ amounts are taken in.
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单项选择题

During a single hour, an automatic camera photographed 100 vehicles that were speeding on a one-way road, and police a mile farther down the road photographed 49 vehicles that were speeding. Since every vehicle that passed the automatic camera also passed the police during the hour, the police photographed fewer than half of the vehicles that were speeding when passing them.
Which of the following is an assumption on which the reasoning in the argument above depends

A．Fewer than half of the vehicles that were speeding when they passed the police were already speeding when they passed the automatic camera.

B．Drivers who are not exceeding the speed limit are less likely than drivers who are speeding to reduce their driving speed when they see a marked police car.

C．Most of the vehicles that were speeding when they passed the automatic camera were still speeding when they passed the police.

D．More than 100 vehicles passed the automatic camera during the hour in which the automatic camera photographed 100 speeding vehicles.

E．(E) Not more than 100 vehicles drove past the police during the hour in which the police photographed 49 speeding vehicles.
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